The vessels within the dermis of the ear biopsy in 1 Cape buffalo and ear and eyelid biopsies of 3 hippopotamuses contained large, gram-variable
Paenibacillus can also stain as Gram-variable
or Gram-negative, which can cause delays in identification and appropriate treatment.
Gram staining of an intra-articular aspirate obtained that day from the affected knee showed Gram-variable
 which assigns a score between 0 and 10 based on the following various bacterial morphotypes: large Gram-positive rods (Lactobacillus morphotypes), small Gram-variable
(15) The Nugent score is calculated by assessing for the presence of large gram-positive rods (Lactobacillus morphotypes; decrease in Lactobacillus scored as 0 to 4), small gram-variable
It consists of facultatively anaerobic, oxidase- and catalase-negative, nonsporing, nonencapsulated, nonmotile, pleomorphic, Gram-variable
Gram stain from the blood culture showed Gram-variable
mixed with Gram-negative rods (later on identified as Aggregatibacter actinomycetemcomitans).
A Changes in vaginal flora, such as a decreasing normal presence of lactobacilli (large gram-positive rods) and an increased presence of other bacteria, particularly Gardnerella vaginalis (gram-negative to gram-variable
pleomorphic rods), is associated with bacterial vaginosis (BV), the most common cause of vaginitis in women of reproductive age.
The Gram-negative or Gram-variable
short rods, transparent colonies, [beta]-hemolytic on human blood agar, catalase-negative, Glucose, Prolin, ONPG positive, were presumptively identified as G.
In this system, large Gram-positive rods (Lactobacillus morphotypes), small Gram-negative to gram-variable
rods (Gardneralla vaginalis and Bacteroides morphotypes) and curved Gram-negative rods (Mobiluncus species) are quantitated and a summation score is obtained.
The culture grew a Gram-variable
bacillus, identified at a reference laboratory as Tsukamurella spp, and a yeast, Trichosporon spp.
The test organisms used [Escherichia coli, Enterobacter cloacae, Pseudomonas fluorescens, Proteus vulgaris, Alcaligenes faecalis, Serratia marcescens, Enterobacter aerogenes (Gram-negative bacteria), Staphylococcus aureus, Arthrobacter globiformis, Micrococcus luteus, Bacillus cereus, Bacillus subtilis (Gram-positive bacteria), Bacillus coagulans, Micrococcus roseus (Gram-variable
bacteria), Mycobacterium phlei, Mycobacterium rodochrus, and Mycobacterium smegmatis] were supplied by BD-IAU.